Horological instrument.



w. E. E. M lLZ.

HDROLOGICAL INSTRUMENT.

APPLICATION FILED JUNE I]. 1915.

Patented Mar. 7, 1916.

3 SHEETS-SHEET1 Wane bozo W. E. E. MILZ. HOROLOGICAL INSTRUMENT.

APPLICATION FILED JUNE n. 1915.

1,174,!) 1 5. Patented Mar. 7, 1916.

3 SHEETS-SHEET 2.

w. E. E. M|LZ. HOROLOGICAL INSTRUMENT.

APPLICATION FILED JUNE 11, 1915- Patented Mar. 7,1916.

3 SHEETSSHEET 3.

Tm: COLUMBIA PLANOGRAPH co., WASHINGTON, D. c.

UNITED STATES PATENT ()FFICE.

WALTER E. E. MILZ, OF NEW YORK, N. Y., ASSIGNGB, TO UNCLE SAM CLOCK & NOVELTY COMPANY, OF NEW YORK, N. Y.,

A CORPORATION OF NEW YORK.

HOROLOGICAL INSTRUMENT.

Application filed June 11, 1915.

To all whom it may concern Be it known that I, WVALTER E. E. MILZ, a subject of the German Emperor, residing at New York, county and State of New York, have invented and discovered certain new and useful Improvements in Horological Instruments, of which the following is a specification.

The present invention relates to horological instruments and consists in the combinations and arrangements of parts hereinafter described and particularly set forth in the accompanying claims.

The purpose of the invention is to provide an attachment for short running timepieces, whereby to greatly increase the running period therefor, and which will not require any particular make of instrument for its application.

A further purpose of the invention is to produce a device of this character, simple in design, and having the minimum dimensions, to the end of particularly adapting the same for use on motor vehicles.

The invention is shown by way of illustration in the accompanying drawings, wherein Figure 1 is a front elevational view thereof, Fig. 2 a longitudinal sectional view of the same, Fig. 3 a detailed face view of the driving gear wheel and spring, Fig. i a similar view, enlarged, of the opposite side thereof and showing the movement connection, Fig. 5 a detailed face view of the drum, Fig. 6 a detail View, in elevation, of

the movement and drive therefor, Fig. 7

an elevational View taken at right angles to Fig. 6, Fig. 8 a front elevational view of a modified form of spring and barrel, Fig. 9 a longitudinal sectional view of Fig. 8, Fig. 10 a modified form of movement and drive, and Fig. 11 an elevational view taken at right angles to Fig. 10.

Referring to the construction in detail, and wherein like reference characters indicate corresponding parts in the several views, 1 and 2 indicate the side plates of he frame, containing the training 3 of the movement, and 4: is a pin or stud projecting from said frame. Said movement and frame may be of any preferred form and do not require any a teration in the instant application. pinion 5 is mounted on the winding arbor 6 of the movement works, and meshes with a combination gear wheel Specification of Letters Patent.

Patented Mar. *7, 1916.

Serial No. 33,567.

7 on the stud 8, and said pinion 7 gears with the teeth 9 of the internal gear wheel 10, formlng a part of the movement. The gear wheel 10 is journaled on the stud l and has its run portion constructed to form the gear element 9 and a chamber to receive the volute spring 11 whose outer end projects through an opening 12 in the rim and has hooked engagement therewith, as at 13. Sald spring operates to drive the gear wheel 10 for actuating the movement train 3 through the gears 7, 5, and the arbor 6.

The means for winding the spring 11 consists of a barrel or drum 1 1, having a hub 15 ournaled on the stud 1, and said hub carries a screw 16 that secures the inner end 16 of the spring to the barrel for coiling the spring from the center through the turning movement of the barrel. A pawl 17, mounted on the barrel, is adapted to engage with the teeth of the ratchet wheel 18 to hold said drum against counter rotation and maintain the tension of the spring. The ratchet is secured to the casing 19 by screws 20, or in any suitable manner, and a spring 21 engages the pawl 17 and normally holds the same against the ratchet, as will be understood. The stud 4 has a squared end portion 1 to receive the squared center opening of the ratchet wheel 18, to the end of affording a rigid support for the stud and frame for the movement. Said stud is also formed with a screw-threaded aperture receiving the screw 5 whose head is countersunk in the face of the casing section 19.

The outer casing 19 is adapted to be secured to a fixed base (a. 9., he dash of a motor vehicle) in any appropriate manner, and the barrel 1% is turned to wind the spring through the bezel 22 that is screwed on said barrel, as at 93. A crystal 2% covers the face of the drum and, with the casing section 19, forms a complete closure or housing for the instrument.

In the construction shown in Figs. 8 and 9, the barrel or drum 25 is formed with an opening 26 in its rim to receive the hooked end 27 of the main spring 11, and the inner end 28 of said spring is secured to the center bushing 29 of the internal gear wheel 30. With this arrangement, the spring is wound by the barrel from its outer end and acts to rotate the internal gear wheel from its inner end, as distinct from the reverse to this arrangement, wmch is true in the former instance. In other respects the arrangement and operation are the same.

In the modified form illustrated in Figs. 10 and 11, the winding arbor 6 of the movement train carries a pinion 5 that meshes with a double pinion 31 that is also in gear with the large pinion 82. Said pinion 32 is secured to the-drum 33 by screws 34, or otherwise, and said drum, journaled on the stud 4, contains and is connected with the mainspring 11 (not shown); A shoulder '35, formed on the stud l, spaces the pinion 32- to move clear of the driving pinion 5, and said shoulder is cut away, as at 36, to afford the proper clearance for said driving pinion, as indicated in Fig. 10. With this arrangement, the external gear wheel 32, together with the double pinion 31, serves in lieu of the internal gear wheel 10 employed in the first instance.

It is obvious that those skilled in the art may vary the details of construction and arrangement of parts without departing from the spirit of the invention, and therefore I do not wish to be limited to such features except as may be required by the claims.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a horological instrument the combination of a casing, a. movement frame having a 'stud secured to said casing, a move ment in said frame having a winding arbor, a drum rotatably mounted on the frame stud, a device for holding the drum against counter rotation, a wheel journaled on the stud and formed with an internal gear, a pinion mounted on said arbor, a pinion meshing with said arbor pinion and the internal gear, a volute spring mounted in the casing and having its respective ends se cured to the drum and to the internal gear wheel, and a bezel for rotating the drum to wind said spring, substantially as set forth.

2. In a horological instrument the combination of a casing, a movement frame hav ing a stud secured to said casing, a movement in said frame, a drum having a hub rotatably mounted on the frame stud, a device for holding the drum against counter rotation, a wheel journaled on the frame stud having a rim forming a chamber and an internal gear, a pinion driving connection between said gear and the movement, spring mounted within said chamber and having its respective ends secured to said internal gear wheel and the drum, and a bezel for rotating the drum to wind said spring, substantially as set forth.

3. In a horological instrument the combination, of a casing, a movement frame having a stud secured to said casing, a movement in said frame, a gear wheel journaled on the stud, a pinion driving connection between said gear wheel and the movement, a drum journaled on the frame, a spring'disposed between said drum and the gear wheel and having its respective ends secured to said gear wheel and drum, a bezel secured to the drum for winding the spring, a ratchet wheel secured to the casing and having engagement with said stud to additionally support the movement frame, and a pawl carried by the drum to engage the ratchet and hold said drum against counter rotation, substantially as set forth. 7

In witness whereof, I have hereunto set my hand and seal at IVashington, District of Columbia, this tenth day of June, A. D. nineteen hundred and fifteen.

IVALTER E. E. MILZ. [14. s] IVitnesses:

E. W. BRADFORD, H. H. BYRNE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

